import random, csv, discord, datetime
from collections import defaultdict

TOKEN = '<SECRET>'

users = defaultdict(lambda: defaultdict(lambda: defaultdict(int)))

# csv from DiscordChatExporter v2.12.1
with open('log.csv') as fh:
    c = csv.reader(fh, delimiter=";")
    for name, _, msg, _, _ in c:
        msg = "~S~ " + msg + " ~E~"
        [users[name][pre].update({suff: users[name][pre][suff]+1}) for pre, suff in zip(msg.split(" ")[:-1], msg.split(" ")[1:])]

def prod(usr):
    bld, tok = [], "~S~"
    while tok != "~E~":
        bld.append(tok)
        tok = random.choices(*zip(*users[usr][tok].items()))[0]
    return(" ".join(bld[1:]))

class BotClient(discord.Client):
    async def on_message(self, message):
        if message.content.startswith('!quote') and str(message.channel) == 'bot-and-spam':
            try: await message.channel.send(embed=discord.Embed(type='rich', colour=discord.Colour.blue(), description=prod(str(message.mentions[0])), timestamp=datetime.datetime.now()).set_footer(text='markov 2-gram walk').set_author(name=message.mentions[0].display_name, icon_url=message.mentions[0].avatar_url))
            except: await message.channel.send("fail")

c = BotClient()
c.run(TOKEN)